Emanuel "Manny" Hirsch Bloch (May 12, 1901 – January 30, 1954)  served as the defense attorney for Julius and Ethel Rosenberg. Following their execution, he delivered the eulogy at their funeral and served as guardian for the Rosenberg's children, Michael and Robert, until they were adopted.

Source: https://en.wikipedia.org/wiki/Emanuel_Hirsch_Bloch